REISERFS (device loop3): checking transaction log (loop3) hfsplus: unable to parse mount options REISERFS (device loop3): Using r5 hash to sort names REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. ====================================================== WARNING: possible circular locking dependency detected 4.14.302-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.3/9941 is trying to acquire lock: (sb_writers#14){.+.+}, at: [] sb_start_write include/linux/fs.h:1551 [inline] (sb_writers#14){.+.+}, at: [] mnt_want_write_file+0xfd/0x3b0 fs/namespace.c:497 but task is already holding lock: (&sbi->lock){+.+.}, at: [] reiserfs_write_lock+0x75/0xf0 fs/reiserfs/lock.c:27 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&sbi->lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 reiserfs_write_lock+0x75/0xf0 fs/reiserfs/lock.c:27 reiserfs_lookup+0x130/0x400 fs/reiserfs/namei.c:363 lookup_real fs/namei.c:1555 [inline] __lookup_hash fs/namei.c:1575 [inline] __lookup_hash+0x1bb/0x270 fs/namei.c:1563 lookup_one_len+0x279/0x3a0 fs/namei.c:2539 reiserfs_lookup_privroot+0x92/0x270 fs/reiserfs/xattr.c:970 reiserfs_fill_super+0x1d12/0x2990 fs/reiserfs/super.c:2187 mount_bdev+0x2b3/0x360 fs/super.c:1134 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2572 [inline] do_mount+0xe65/0x2a30 fs/namespace.c:2905 SYSC_mount fs/namespace.c:3121 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3098 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 -> #1 (&type->i_mutex_dir_key#9){+.+.}: down_write+0x34/0x90 kernel/locking/rwsem.c:54 inode_lock include/linux/fs.h:719 [inline] do_last fs/namei.c:3331 [inline] path_openat+0xde2/0x2970 fs/namei.c:3571 do_filp_open+0x179/0x3c0 fs/namei.c:3605 do_sys_open+0x296/0x410 fs/open.c:1081 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 -> #0 (sb_writers#14){.+.+}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x64/0x260 fs/super.c:1342 sb_start_write include/linux/fs.h:1551 [inline] mnt_want_write_file+0xfd/0x3b0 fs/namespace.c:497 reiserfs_ioctl+0x18e/0x8b0 fs/reiserfs/ioctl.c:110 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 other info that might help us debug this: Chain exists of: sb_writers#14 --> &type->i_mutex_dir_key#9 --> &sbi->lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sbi->lock); lock(&type->i_mutex_dir_key#9); lock(&sbi->lock); lock(sb_writers#14); *** DEADLOCK *** 1 lock held by syz-executor.3/9941: #0: (&sbi->lock){+.+.}, at: [] reiserfs_write_lock+0x75/0xf0 fs/reiserfs/lock.c:27 stack backtrace: CPU: 0 PID: 9941 Comm: syz-executor.3 Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1905 [inline] check_prevs_add kernel/locking/lockdep.c:2022 [inline] validate_chain kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x64/0x260 fs/super.c:1342 sb_start_write include/linux/fs.h:1551 [inline] mnt_want_write_file+0xfd/0x3b0 fs/namespace.c:497 reiserfs_ioctl+0x18e/0x8b0 fs/reiserfs/ioctl.c:110 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7fabd2e570d9 RSP: 002b:00007fabd13c9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fabd2f76f80 RCX: 00007fabd2e570d9 RDX: 0000000020000380 RSI: 0000000040087602 RDI: 0000000000000005 RBP: 00007fabd2eb2ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff9e4973cf R14: 00007fabd13c9300 R15: 0000000000022000 audit: type=1804 audit(1671682603.153:2): pid=10009 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir633180906/syzkaller.VRr9gF/15/file0/file0" dev="loop3" ino=4 res=1 XFS (loop0): Superblock has unknown read-only compatible features (0x8) enabled. XFS (loop0): Attempted to mount read-only compatible filesystem read-write. XFS (loop0): Filesystem can only be safely mounted read only. XFS (loop0): SB validate failed with error -22. block nbd4: Attempted send on invalid socket print_req_error: I/O error, dev nbd4, sector 2 block nbd4: Attempted send on invalid socket print_req_error: I/O error, dev nbd4, sector 0 block nbd4: Attempted send on invalid socket print_req_error: I/O error, dev nbd4, sector 0 block nbd4: Attempted send on invalid socket print_req_error: I/O error, dev nbd4, sector 18 block nbd4: Attempted send on invalid socket print_req_error: I/O error, dev nbd4, sector 30 block nbd4: Attempted send on invalid socket print_req_error: I/O error, dev nbd4, sector 36 block nbd4: Attempted send on invalid socket print_req_error: I/O error, dev nbd4, sector 2 block nbd4: Attempted send on invalid socket print_req_error: I/O error, dev nbd4, sector 0 block nbd4: Attempted send on invalid socket print_req_error: I/O error, dev nbd4, sector 0 block nbd4: Attempted send on invalid socket print_req_error: I/O error, dev nbd4, sector 18 REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal hfsplus: unable to parse mount options REISERFS (device loop3): using ordered data mode reiserfs: using flush barriers REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop3): checking transaction log (loop3) REISERFS (device loop3): Using r5 hash to sort names REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. audit: type=1804 audit(1671682603.723:3): pid=10071 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir633180906/syzkaller.VRr9gF/16/file0/file0" dev="loop3" ino=4 res=1 XFS (loop0): Superblock has unknown read-only compatible features (0x8) enabled. XFS (loop0): Attempted to mount read-only compatible filesystem read-write. XFS (loop0): Filesystem can only be safely mounted read only. XFS (loop0): SB validate failed with error -22. audit: type=1804 audit(1671682604.093:4): pid=10107 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir633180906/syzkaller.VRr9gF/17/file0" dev="sda1" ino=13975 res=1 REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal REISERFS (device loop3): using ordered data mode reiserfs: using flush barriers REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop3): checking transaction log (loop3) REISERFS (device loop3): Using r5 hash to sort names REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. XFS (loop0): Superblock has unknown read-only compatible features (0x8) enabled. XFS (loop0): Attempted to mount read-only compatible filesystem read-write. XFS (loop0): Filesystem can only be safely mounted read only. XFS (loop0): SB validate failed with error -22. XFS (loop0): Superblock has unknown read-only compatible features (0x8) enabled. XFS (loop0): Attempted to mount read-only compatible filesystem read-write. XFS (loop0): Filesystem can only be safely mounted read only. XFS (loop0): SB validate failed with error -22. nla_parse: 128 callbacks suppressed netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. caif:caif_disconnect_client(): nothing to disconnect NOHZ: local_softirq_pending 08 NOHZ: local_softirq_pending 08 sctp: [Deprecated]: syz-executor.2 (pid 10408) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. caif:caif_disconnect_client(): nothing to disconnect caif:caif_disconnect_client(): nothing to disconnect netlink: 336 bytes leftover after parsing attributes in process `syz-executor.0'. unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Bearer rejected, not supported in standalone mode Bearer rejected, not supported in standalone mode Bearer rejected, not supported in standalone mode Bearer rejected, not supported in standalone mode 8021q: adding VLAN 0 to HW filter on device ipvlan2 REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal REISERFS (device loop0): using ordered data mode reiserfs: using flush barriers REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop0): checking transaction log (loop0) REISERFS (device loop0): Using r5 hash to sort names reiserfs: enabling write barrier flush mode REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. audit: type=1800 audit(1671682609.373:5): pid=10679 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="bus" dev="loop0" ino=2 res=0 8021q: adding VLAN 0 to HW filter on device ipvlan2 REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal REISERFS (device loop2): using ordered data mode reiserfs: using flush barriers REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop2): checking transaction log (loop2) REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal REISERFS (device loop0): using ordered data mode reiserfs: using flush barriers REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop2): Using r5 hash to sort names REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop0): checking transaction log (loop0) REISERFS (device loop0): Using r5 hash to sort names reiserfs: enabling write barrier flush mode REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. audit: type=1804 audit(1671682609.783:6): pid=10726 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir2180707220/syzkaller.GDoTLr/57/file0/file0" dev="loop2" ino=4 res=1 audit: type=1800 audit(1671682609.813:7): pid=10736 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="bus" dev="loop0" ino=2 res=0 F2FS-fs (loop5): Wrong secs_per_zone / total_sections (3173188353, 24) F2FS-fs (loop5): Can't find valid F2FS filesystem in 1th superblock F2FS-fs (loop5): Found nat_bits in checkpoint F2FS-fs (loop5): sanity_check_inode: inode (ino=3) has corrupted i_extra_isize: 24, max: 12 F2FS-fs (loop5): Failed to read root inode F2FS-fs (loop5): Wrong secs_per_zone / total_sections (3173188353, 24) 8021q: adding VLAN 0 to HW filter on device ipvlan2 audit: type=1800 audit(1671682610.044:8): pid=10773 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.2" name="file0" dev="sda1" ino=14033 res=0 F2FS-fs (loop5): Can't find valid F2FS filesystem in 1th superblock F2FS-fs (loop5): Found nat_bits in checkpoint REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal REISERFS (device loop0): using ordered data mode reiserfs: using flush barriers REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 F2FS-fs (loop5): sanity_check_inode: inode (ino=3) has corrupted i_extra_isize: 24, max: 12 F2FS-fs (loop5): Failed to read root inode REISERFS (device loop0): checking transaction log (loop0) REISERFS (device loop0): Using r5 hash to sort names reiserfs: enabling write barrier flush mode REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. audit: type=1800 audit(1671682610.324:9): pid=10771 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="bus" dev="loop0" ino=2 res=0 REISERFS (device loop1): found reiserfs format "3.5" with non-standard journal REISERFS (device loop1): using ordered data mode reiserfs: using flush barriers REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop1): checking transaction log (loop1) REISERFS (device loop1): Using r5 hash to sort names REISERFS (device loop1): using 3.5.x disk format 8021q: adding VLAN 0 to HW filter on device ipvlan2 REISERFS warning: green-16003 errcatch_is_left_mergeable: Invalid item type observed, run fsck ASAP 8021q: adding VLAN 0 to HW filter on device ipvlan2 REISERFS warning: green-16003 errcatch_is_left_mergeable: Invalid item type observed, run fsck ASAP REISERFS warning: green-16003 errcatch_is_left_mergeable: Invalid item type observed, run fsck ASAP REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal REISERFS warning: green-16003 errcatch_is_left_mergeable: Invalid item type observed, run fsck ASAP REISERFS warning: green-16003 errcatch_is_left_mergeable: Invalid item type observed, run fsck ASAP REISERFS (device loop0): using ordered data mode reiserfs: using flush barriers BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop5 REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 BTRFS info (device loop5): using free space tree BTRFS error (device loop5): cannot mount because of unsupported optional features (0x800) 8021q: adding VLAN 0 to HW filter on device ipvlan2 REISERFS (device loop0): checking transaction log (loop0) REISERFS (device loop0): Using r5 hash to sort names BTRFS error (device loop5): open_ctree failed 8021q: adding VLAN 0 to HW filter on device ipvlan3 reiserfs: enabling write barrier flush mode REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal REISERFS (device loop4): using ordered data mode audit: type=1800 audit(1671682610.924:10): pid=10811 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="bus" dev="loop0" ino=2 res=0 reiserfs: using flush barriers REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop4): checking transaction log (loop4) 8021q: adding VLAN 0 to HW filter on device ipvlan4 REISERFS (device loop4): Using r5 hash to sort names REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop4): found reiserfs format "3.5" with non-standard journal REISERFS (device loop4): using ordered data mode reiserfs: using flush barriers REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop4): checking transaction log (loop4) REISERFS (device loop4): Using r5 hash to sort names reiserfs: enabling write barrier flush mode REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. audit: type=1804 audit(1671682611.354:11): pid=10920 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir2926772329/syzkaller.85ROuI/55/file0/bus" dev="loop4" ino=2 res=1 SQUASHFS error: lzo decompression failed, data probably corrupt 8021q: adding VLAN 0 to HW filter on device ipvlan5 SQUASHFS error: squashfs_read_data failed to read block 0x8f SQUASHFS error: Unable to read metadata cache entry [8f] SQUASHFS error: Unable to read inode 0x11f SQUASHFS error: lzo decompression failed, data probably corrupt SQUASHFS error: squashfs_read_data failed to read block 0x8f 8021q: adding VLAN 0 to HW filter on device ipvlan6 SQUASHFS error: Unable to read metadata cache entry [8f] SQUASHFS error: Unable to read inode 0x11f